Tool-holder.



PATENTED FEB. '7, 1905.

O. W. PHILLIPS.

TOOL HOLDER.

APPLIOATION FILED MAY 9, 1904.

LJI

Patented February '7, 1905.

UNTTeo STATEs PATENT @FFICE.

CHARLES W. PHILLIPS, OF MILVAUKEE, USUONSIN, ASSIGNOE OF ONE- HALF TOEUGENE F. JFAVELL, OF .\I1L\\"AUKEE, \VISUONSIN.

TOOL-HOLDER.

SPECIFICATION forming part of Letters Patent No. 781,786, dated February'7, 1905.

Application filed May 9, 1904. Serial No. 207,133.

To (t/l u'lmm, ff may (on c0772.:

Be it known that 1, CHARLES \V. lHILLIrs, a

citizen of the United States, residing at Mil- 5 waukce, in the countyof Milwaukee and State of \Yisconsin, have invented certain new anduseful Improvements in Tool-Holders; and 1 do declarethe following to bea full, clear, and exact description of the invention. such as willpertains to make and use the same.

My invention relates to improvements in tool-holders for use in theusual tool-posts of lathes or similar machines.

The object of my invention is to provide a simple, durable, andeflicient device of this character by means of which machine-tools ofvarious kinds and sizes may be securely held and at the same timepermitted to be readily turned or adjusted to either side and at anydesired angle.

With this and other objects in view the invention consists of certainnovel features of construction, combination, and arrangement of parts,as will be more fully described, and partituilarly pointed out in theappended claims.

in the accompanying drawings, Figure 1 is a top plan view of my improvedtool-holder. Fig. 2 is an end elevation of the same. Fig. 3 is ahorizontal section taken on the line 3 3 of Fig. 2. Fig. 1 is a verticaltransversesection taken on the line a a of Fig. 1. Fig. 5 is a sideelevation of the chuck removed from the chiurk-easing, its jaws beingshown separated. Fig. 6 is an end elevation of the parts shown in Fig.Fig. 7 is a detail transverse sectional view through a modified form ofchuck.

Referring to the drawings by numerals, 1 dcnotes a cylindrical chuckheador casing formed with an angularly-projecting shank 2 at one side and alongitudinal slit 3 in its top. Said casing is formed with a cylindricalbore 1, and upon its top at each side of said slit is formed anapertured lug One of said lugs is screw-tln'eaded, as at 6, to receive ascrew 7, which also passes through the other of said lugs to clamp saidcasing upon a chuck 8.

less diameter than the diameter of the bore '-L 5 and comprises two jawsSand 11). The jaw 9, as shown in the first six ligures of the drawings,is formed with a rectangular recess 11, into which the jaw 10telescopes, and in order to guide said jaw 10 a slot 12 is formed in oneside of the aw t) and is adapted to receive a enable others skilled inthe art to which it appin 1;), projecting from the jaw 10. Themachine-tool 11, of any suitable form, wluch is to be held by thedevice, is clamped in said recess 11 by the jaw 11), and in order toper- .mit tools of various sizes to be thus clamped the jaw 10 isprovided with a series of setscrews 15, which may be adjusted into andout of threaded apertures in said jaw to vary the thickness of thelatter, as will be readily 5 understood.

Instead of forming the jaw 9 with a recess having a Hat bottom toaccommodate tools which are rectangular in cross-section I may form thesame with a recess having a V-shaped 7 bottom 16, as shown in Fig. 7, topermit tools which are circular in cross-section to he clamped.

The operation of the device will be readily seen upon reference to thedrawings. tool to be clamped is placed in the recess .11 of the jaw 9beneath the jaw ll), and the setscrews 15 of the latter are thenadjusted so that the outer face of said jaw 10 will project slightlybeyond the curvature of the jaw t).

The jaws are then placed in the bore a of the casing 1, and the screw 7is then operated to simultaneously clamp said aws within the casing andsaid jaws upon the tool. The

shank 2 is clamped in the usual tool-post, as 5 will be readilyunderstood. 'It will be seen that when the screw 7 is loosened the jawsmay be readily turned in the bore of the casing to adjust the tool atany desired angle and that said jaws may also be moved or 9 adjustedlongitudinally. If desired, one end of the casing 1 may be provided witha suitable scale with which an imlicator-arrow upon the adjacent end ofthe jaw 9 coacts in order to indicate the angle at which the tool isadjusted.

The 75 From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention.

Having thus fully described my invention. what I claim as new, anddesire to secure by Letters Patent, is

1. In atool-holder, the combination of asplit clamping-casing, having acylindrical bore, a cylindrical tool-chuck comprising telescoping jawsadapted to receive a tool between them, screws in one of said jaws tolimit its movement into the other of said jaws, and means for clampingsaid chuck in said casing, and a my hand in presence of two subscribingwit- 35 nesses.

CHARLES W. PHILLIPS. Witnesses:

EUGENE J EwnLL, Jon H. LIESENFELD.

